Composition Of Coarse And Fine Fractions Of Particulate Matter
At An Urban And A Conurban Site In Northern Italy
Author(s)
G.M. Marcauan, G. Valli & R. Vecchi
Abstract
Composition of coarse and fine fractions of
participate matter at an urban and a conurban
site in Northern Italy
G.M. Marcazzan, G. Valli & R. Vecchi
Institute di Fisica Generate Applicata, University of Milan, Italy
Abstract
In this paper results of two measurement campaigns (during winter and
summertime) carried out simultaneously at an urban site (Milan) and a conurban
town (Erba) are presented.
Contemporary TSP, PM10, PM2.5 samplings were performed with the aim
of studying their mass concentration and elemental composition in relation to
sites differences.
The daily variability of mass concentration values appeared to be strongly
dependent from atmospheric stability and wind regimes. Also the ratio between
different fractions was dependent from general circulation conditions. Both in
winter and summer a mean decrease of about 20% for TSP concentration - and a
greater diminish of the PM10 and PM2.5 (about 40 % for PM2.5) - was
observed at the conurban si
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